Библиотека института физики им. Л.В. Киренского СО РАН

Главная

Базы данных

Труды сотрудников ИФ СО РАН - результаты поиска

Вид поиска

Каталог книг и брошюр библиотеки ИФ СО РАН

Каталог журналов библиотеки ИФ СО РАН

Труды сотрудников ИФ СО РАН

Область поиска

в найденном

Формат представления найденных документов:
полный	информационный	краткий

Отсортировать найденные документы по:
автору	заглавию	году издания	типу документа

Поисковый запрос: (<.>K=dipole<.>)

Общее количество найденных документов : 47
Показаны документы с 1 по 10

1-10 11-20 21-30 31-40 41-47

Enhancement of the magnetoelectric effect in the Bi2Fe4O9/BiFeO3 composite as a result of dipole and migration polarization in mullite / L. V. Udod, S. S. Aplesnin, F. V. Zelenov [et al.] // J. Mater. Sci. - 2024. - Vol. 59, Is. 24. - P. 10763-10775, DOI 10.1007/s10853-024-09885-x. - Cited References: 55 . - ISSN 0022-2461. - ISSN 1573-4803
Аннотация: The effect of the size of Bi2Fe4O9 and BiFeO3 nanoparticles on the magnetoelectric interaction in the Bi2Fe4O9/BiFeO3 composite with a percentage ratio of 67/33 has been studied. The electrostriction and electric polarization on electric and magnetic field in wide temperature range has been measured. The hysteresis of the polarization and I?V characteristics has been found. Temperature ranges with activation and hopping types of conductivity have been found. The mechanism of electric polarization and the crossover temperature from dipole polarization to migration polarization at 260 K have been established. Linear and quadratic contributions to the magnetoelectric effect have been found. Below 120 K the linear contribution is an order of magnitude greater than the quadratic contribution and above 240 K the quadratic contribution to the ME effect prevails. Models have been proposed to explain the enhancement of the magnetoelectric effect as a result of the migration polarization in mullite and linear magnetoelectric effect in bismuth ferrite. The correlation of temperatures of the extremum of the temperature coefficient of the electrical resistance and the magnetic phase transition in mullite at 260 K indicates a polaron-type conductivity and a strong electron?phonon interaction. A change in the sign of the electrostriction coefficient upon heating and the compression temperature of the composite in an electric field was found.

Смотреть статью
Держатели документа:
Federal Research Center KSC SB RAS, Kirensky Institute of Physics, Akademgorodok 50, bld. 38, Krasnoyarsk, Russia, 660036
Reshetnev Siberian State University of Science and Technology, Krasnoyarsk, Russia, 660037

Доп.точки доступа:
Udod, L. V.; Удод, Любовь Викторовна; Aplesnin, S. S.; Аплеснин, Сергей Степанович; Zelenov, F. V.; Sitnikov, M. N.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Romanova, O. B.; Романова, Оксана Борисовна
}
Найти похожие

Chzhan, A. V.
Interlayer interaction and coercivity of three-layer films obtained bу chemical deposition / A. V. Chzhan, V. A. Orlov, M. N. Volochaev // Phys. Met. Metallogr. - 2023. - Vol. 124, Is. 10. - P. 961-965, DOI 10.1134/S0031918X23601804. - Cited References: 21. - We are grateful to S.Ya. Kiparisov for the provided samples . - ISSN 0031-918X. - ISSN 1555-6190
Кл.слова (ненормированные):
multilayer magnetic films -- interlayer interaction -- dipole coupling field -- coercivity
Аннотация: The results of experimental and theoretical studies of the coercivity and the dipole coupling field of the hysteresis loop on the thickness of the nonmagnetic interlayer in magnetic films, which are obtained via chemical deposition, are presented. Using model calculations based on the Landau–Ginzburg equations, the exchange interactions between magnetic layers with the participation of atoms from the nonmagnetic interlayer are studied. The resulting expression for the dipole coupling field describes well the exponential changes in the dipole coupling field as a function of the interlayer thickness in structures with both soft magnetic layers and layers with significantly different values of the coercivity.

Смотреть статью,
Scopus,
Читать в сети ИФ

Публикация на русском языке Чжан А. В. Межслоевое взаимодействие и коэрцитивная сила трехслойных пленок, полученных химическим осаждением [Текст] / А. В. Чжан, В. А. Орлов, М. Н. Волочаев. - 5 с. // Физ. металлов и металловед. - 2023. - Т. 124 № 10. - С. 904-908

Держатели документа:
Siberian Federal University, 660041, Krasnoyarsk, Russia
Krasnoyarsk State Agrarian University, 660049, Krasnoyarsk, Russia
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, 660036, Krasnoyarsk, Russia

Доп.точки доступа:
Orlov, V. A.; Орлов, Виталий Александрович; Volochaev, M. N.; Волочаев, Михаил Николаевич
}
Найти похожие

Muzalevskiy, K. V.
LPDA calibration using an UAV for synthesizing UWB impulses / K. Muzalevskiy // IEEE Antennas Wirel. Propag. Lett. - 2023. - Vol. 22, Is. 9. - P. 2140-2144, DOI 10.1109/LAWP.2023.3278333. - Cited References: 19. - The investigation supported by the Russian Science Foundation and the Krasnoyarsk Regional Science Foundation, project № 22-17-20042 . - ISSN 1536-1225. - ISSN 1548-5757
Кл.слова (ненормированные):
Log-periodic dipole antenna (LPDA) -- complex antenna transfer function -- complex antenna return loss -- ultra-wideband (UWB) impulses -- impulse radiation -- unmanned aerial vehicle (UAV)
Аннотация: In this letter, the possibility of synthesizing ultra-wideband (UWB) impulses with a conventional log-periodic dipole antenna (LPDA) mounted on a quadrotor unmanned aerial vehicle (UAV) was demonstrated. The formation of impulses using LPDA (bandwidth from 427 MHz to 1.01 GHz) with a duration of 1.9 ns, containing one period of field oscillations, became possible due to compensation of amplitude and phase-frequency distortions introduced by the antenna into radiated and received impulses. Compensation for these distortions was carried out by inverse filtering method after calibrating the antenna-feeder path at various heights UAV hovering above the reference reflector (brass mesh). The conductive carbon elements of UAV, located in the near field of the antenna, are indirectly taken into account during the calibration of antenna-feeder path parameters and do not introduce significant distortions into the generated impulses. The suggested method of synthesizing UWB impulses can find application in environmental remote sensing and can also be used to sharpen fronts of impulses radiated\received with LPDA.

Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Держатели документа:
Kirensky Institute of Physics SB RAS Akademgorodok 36, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Музалевский, Константин Викторович
}
Найти похожие

Muzalevskiy, K. V.
Calibration of UWB UAV radar for the remote measurement of reflection coefficient / K. Muzalevskiy, M. Mikhaylov, Z. Ruzicka // IEEE Ural-Siberian Conference on Biomedical Engineering, Radioelectronics and Information Technology (USBEREIT). - 2023. - P. 105-108, DOI 10.1109/USBEREIT58508.2023.10158870. - Cited References: 16. - The investigation supported by the Russian Science Foundation and the Krasnoyarsk Regional Science Foundation, project № 22-17-20042
Кл.слова (ненормированные):
Microwave remote sensing -- ultra-wide band remote sensing -- unmanned aerial vehicle -- log-periodic dipole antenna -- reflection coefficient
Аннотация: In this work, the possibility of the remote measurement of reflection coefficient in the ultra-wide frequency range from 425 MHz to 1010 MHz from the board of unmanned aerial vehicle (UAV) using ultra-wide band (UWB) radar was investigated. With this in mind, the antenna-feeder path of UAV UWB radar is calibrated. The calibration process consisted in measuring the reflection coefficient from the brass mesh sheet at various UAV hovering heights. Printed log-periodic dipole antenna was used as transmitter-receiver antenna. As a result, the antenna return loss in an empty-room and the complex antenna response function of the antenna-feeder path of the UAV UWB radar were found. It is shown that the amplitude of the reflected wave from a brass mesh sheet can be measured with root-mean square error (RMSE), RMSE=0.017 1/m and a determination coefficient (R 2 ) of R 2 = 0.967. Therewith the UAV hovering heights measured by the pulse method and the on-board laser rangefinder correlates with each other with R2=0.999 and with RMSE=3.5cm (distance measurement error of the laser rangefinder is ±1cm, surface irregularities of the brass mesh sheet were no more than 1.5cm). Measured in the frequency range from 500 MHz to 900 MHz, the reflection coefficient from fresh lake water by UAV UWB radar with a relative error of no more than 7.5% (practically does not depend on the height of the UAV hovering, approximately from 2.2 m to 5.2 m) coincides with the calculated one by the Stogryn's formulas.

Смотреть статью,
Читать в сети ИФ
Держатели документа:
Laboratory of Radiophysics of the Earth Remote Sensing, Kirensky Institute of Physics Federal Research Center KSC Siberian Branch Russian Academy of Science, Krasnoyarsk, The Russian Federation

Доп.точки доступа:
Mikhaylov, M. I.; Михайлов, Михаил Иванович; Ruzicka, Z.; Ружичка, Зденек; Музалевский, Константин Викторович; IEEE Ural-Siberian Conference on Biomedical Engineering, Radioelectronics and Information Technology(15-17 May 2023 ; Yekaterinburg, Russia)
}
Найти похожие

    Магнитодипольное взаимодействие в двумерном ансамбле нанонитей железа / С. В. Семенов, С. В. Комогорцев, А. Д. Балаев, Д. Л. Загорский // Магнитные материалы. Новые технологии : тез. докл. IX Байкал. междунар. конф. BICMM-2023 / чл. прогр. ком.: S. S. Aplesnin [et al.] ; чл. орг. ком. R. S. Iskhakov [et al.]. - Иркутск, 2023. - С. 30, DOI 10.26516/978-5-9624-2178-0.2023.1-207 . - ISBN 978-5-962402178-0
   Перевод заглавия: Magneto-dipole interaction in 2D iron nanowires array

Материалы конференции,
Материалы конференции,
Читать в сети ИФ
Держатели документа:
Институт физики им. Л. В. Киренского СО РАН
ФНИЦ "Кристаллография и фотоника" РАН

Доп.точки доступа:
Аплеснин, Сергей Степанович \чл. прогр. ком.\; Aplesnin, S. S.; Балаев, Дмитрий Александрович \чл. прогр. ком.\; Balaev, D. A.; Овчинников, Сергей Геннадьевич \чл. прогр. ком.\; Ovchinnikov, S. G.; Исхаков, Рауф Садыкович \чл. орг. ком.\; Iskhakov, R. S.; Семенов, Сергей Васильевич; Semenov, S. V.; Комогорцев, Сергей Викторович; Komogortsev, S. V.; Балаев, Александр Дмитриевич; Balaev, A.D.; Загорский, Д. Л.; Байкальская международная конференция "Магнитные материалы. Новые технологии"(9 ; 2023 ; сент. ; 11-14 ; Байкальск); "Магнитные материалы. Новые технологии", Байкальская международная конференция(9 ; 2023 ; сент. ; 11-14 ; Байкальск); "Magnetic materials. New tecnologies", Baikal International Conference(9 ; 2023 ; Sept. ; 11-14 ; Baikalsk); Иркутский государственный университет
}
Найти похожие

Muzalevskiy, K. V.
Synthesizing of ultra-wide band impulse by means of a log-periodic dipole antenna. Case study for a radar stand experiment / K. Muzalevskiy, M. Mikhaylov, Z. Ruzicka // 2022 IEEE International Multi-Conference on Engineering, Computer and Information Sciences, SIBIRCON 2022 : IEEE, 2022. - P. 1140-1143, DOI 10.1109/SIBIRCON56155.2022.10017008. - Cited References: 20. - The investigation supported by the Russian Science Foundation and the Krasnoyarsk Regional Science Foundation, project № 22-17-20042
Кл.слова (ненормированные):
Microwave remote sensing -- log-periodic dipole antenna -- calibration antenna -- complex antenna transfer function -- ultra-wide band impulse -- radiation and receiving impulse
Аннотация: In this work, the approach of ultra-wide band pulses synthesizing is proposed using a broadband low-cost log-periodic dipole antenna and a vector network analyzer. Synthesis of UWB pulse (duration of 2.2ns) became possible due to minimization of antenna dispersion by compensation of amplitude and phase-frequency distortions introduced by the antenna into radiated and received pulse. The method had been developed for a down-looking antenna in a monostatic radar configuration. The antenna return loss was calculated using the model of two-port linear network with S-parameters. To calibrate the model, an original amplitude-phase method was proposed that requires measuring the antenna's return loss when the antenna is located only at several heights above the reflecting surface (metal sheet). In this case, the antenna return loss in an empty room does not need to be measured. The proposed method for synthesizing UWB pulses does not require changes in the design of the antenna and can be implemented as an additional software calibration of the antenna-feeder path. The proposed method of UWB pulses synthesizing can be implemented using miniature, low-cost vector network analyzers for environment remote sensing from unmanned aerial vehicle using the UWB impulses.

Смотреть статью,
Scopus,
Читать в сети ИФ
Держатели документа:
Kirensky Institute of Physics Federal Research Center, Laboratory of Radiophysics of the Earth Remote Sensing, KSC Siberian Branch, Russian Academy of Science, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Mikhaylov, M. I.; Михайлов, Михаил Иванович; Ruzicka, Z.; Ружичка, Зденек; Музалевский, Константин Викторович; IEEE International Multi-Conference on Engineering, Computer and Information Sciences 2022(1-13 November 2022 ; Yekaterinburg, Russian Federation)
}
Найти похожие

Dipole-dipole interaction weakening in ensembles of cobalt microspheres with a nonmagnetic core / S. V. Komogortsev, L. A. Chekanova, O. V. Shabanova [et al.] // Phys. Solid State. - 2022. - Vol. 64, Is. 9. - P. 1263-1268, DOI 10.21883/PSS.2022.09.54163.16HH. - Cited References: 32. - The study was done with financial support from the Russian Foundation for Basic Research, Government of Krasnoyarsk Territory and the Krasnoyarsk Regional Fund of Science within scientific project No. 20-42-240001 . - ISSN 1063-7834. - ISSN 1090-6460
Кл.слова (ненормированные):
magnetic microspheres -- magnetic dipole-dipole interaction
Аннотация: Magnetic microspheres with nonmagnetic acrylic glass core were fabricated using electroless deposition. There are favorable conditions for magnetic flux closure within each particle. As a result, the dipole-dipole interaction in the powder of such microspheres is reduced drastically. This is the key difference between powders of magnetic microspheres and powders of full magnetic spherical particles witch behavior is significantly affected by the dipole-dipole interaction. The magnetic hysteresis in the cobalt microspheres with nonmagnetic core is significantly large then in the full cobalt particles produced using the same technique.

Смотреть статью,
Читать в сети ИФ

Публикация на русском языке Ослабление диполь-дипольного взаимодействия в ансамблях микросфер кобальта с немагнитным ядром [Текст] / С. В. Комогорцев, Л. А. Чеканова, О. Г. Шабанова [и др.] // Физ. тверд. тела. - 2022. - Т. 64 Вып. 9. - С. 1272-1277

Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB, Russian Academy of Sciences, Krasnoyarsk, Russia
Siberian Federal University, Krasnoyarsk, Russia
Siberian State University of Science and Technology, Krasnoyarsk, Russia
Special Designing and Technological Bureau “Nauka” KSC SB RAS, Krasnoyarsk, Russia
Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russia
Ural Federal University after the first President of Russia B.N. Yeltsin, Yekaterinburg, Russia

Доп.точки доступа:
Komogortsev, S. V.; Комогорцев, Сергей Викторович; Chekanova, L. A.; Чеканова, Лидия Александровна; Shabanova, O. V.; Shabanov, A. V.; Шабанов, Александр Васильевич; Nemtsev, I. V.; Немцев, Иван Васильевич; Neznakhin, D. S.; Denisova, E. A.; Денисова, Елена Александровна; Felk, V. A.; Mohov, A. A.; Мохов, Алексей Александрович; Iskhakov, R. S.; Исхаков, Рауф Садыкович
}
Найти похожие

    Thermal degradation of optical resonances in plasmonic nanoparticles / L. K. Sorensen, D. E. Khrennikov, V. S. Gerasimov [et al.] // Nanoscale. - 2022. - Vol. 14, Is. 2. - P. 433-447, DOI 10.1039/d1nr06444d. - Cited References: 85. - The work is supported by the Russian Science Foundation (project No. 18-13-00363). L. K. S. acknowledges the support of Carl Tryggers Stifetelse, project CTS 18-441. The authors thank the Krasnoyarsk Regional Center of Research Equipment of Federal Research Center "Krasnoyarsk Science Center SB RAS" for the use of Hitachi S-5500 high-resolution scanning electron microscope for the analysis of nanomaterials. Some of the computations were enabled by resources provided by the Swedish National Infrastructure for Computing (SNIC) at the High Performance Computing Center North (HPC2N) partially funded by the Swedish Research Council through grant agree-ment no. SNIC 2020/3-29. Authors thank Anton Utyushev for technical assistance in preparation of Fig. 3 . - ISSN 2040-3364. - ISSN 2040-3372
   Перевод заглавия: Тепловая деградация оптических резонансов в плазмонных наночастицах

РУБ Chemistry, Multidisciplinary + Nanoscience & Nanotechnology + Materials Science, Multidisciplinary + Physics, Applied
Рубрики:
STABILIZED GOLD NANOPARTICLES
DIPOLE INTERACTION-MODEL
Аннотация: The dependence of plasmon resonance excitations in ultrafine (3-7 nm) gold nanoparticles on heating and melting is investigated. An integrated approach is adopted, where molecular dynamics simulations of the spatial and temporal development of the atoms constituting the nanoparticles generate trajectories out of which system conformations are sampled and extracted for calculations of plasmonic excitation cross sections which then are averaged over the sample configurations for the final result. The calculations of the plasmonic excitations, which take into account the temperature- and size-dependent relaxation of the plasmons, are carried out with a newly developed Extended Discrete Interaction Model (Ex-DIM) and complemented by multilayered Mie theory. The integrated approach clearly demonstrates the conditions for suppression of the plasmons starting at temperatures well below the melting point. We have found a strong inhomogeneous dependence of the atom mobility in the particle crystal lattice increasing from the center to its surface upon the temperature growth. The plasmon resonance suppression is associated with an increase of the mobility and in the amplitude of phonon vibrations of the lattice atoms accompanied by electron-phonon scattering. This leads to an increase in the relaxation constant impeding the plasmon excitation as the major source of the suppression, while the direct contribution from the increase in the lattice constant and its chaotization at melting is found to be minor. Experimental verification of the suppression of surface plasmon resonance is demonstrated for gold nanoparticles on a quartz substrate heated up to the melting temperature and above.

Смотреть статью,
Scopus,
WOS
Держатели документа:
Siberian Fed Univ, Int Res Ctr Spect & Quantum Chem IRC SQC, Krasnoyarsk 660041, Russia.
Royal Inst Technol, Dept Theoret Chem & Biol, SE-10691 Stockholm, Sweden.
Fed Res Ctr KSC SB RAS, Inst Computat Modeling, Krasnoyarsk 660036, Russia.
Fed Res Ctr KSC SB RAS, LV Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Inst Chem Organometall Cpds, CNR ICCOM, Via G Moruzzi 1, I-56124 Pisa, Italy.
Fed Siberian Res Clin Ctr FMBA Russia, Kolomenskaya 26, Krasnoyarsk 660037, Russia.
Uppsala Univ, Dept Phys & Astron, Box 516, SE-75120 Uppsala, Sweden.

Доп.точки доступа:
Sorensen, Lasse K.; Khrennikov, Daniil E.; Gerasimov, Valeriy S.; Ershov, Alexander E.; Vysotin, M. A.; Высотин, Максим Александрович; Monti, Susanna; Zakomirnyi, Vadim, I; Polyutov, Sergey P.; Agren, Hans; Karpov, S. V.; Карпов, Сергей Васильевич; Russian Science FoundationRussian Science Foundation (RSF) [18-13-00363]; Carl Tryggers Stifetelse [CTS 18-441]; Swedish Research CouncilSwedish Research CouncilEuropean Commission [SNIC 2020/3-29]
}
Найти похожие

Laser-induced self-assembly of quantum dots: Deterministic case versus brownian case / A. S. Tsipotan, V. A. Tkachenko, A. S. Aleksandrovsky, V. V. Slabko // Photonics Nanostruc. Fundam. Appl. - 2020. - Vol. 40. - Ст. 100791, DOI 10.1016/j.photonics.2020.100791. - Cited References: 23. - The reported study was funded by Russian Science Foundation (Grant 18-72-00003). V.V. Slabko is grateful for the support from the Ministry of Education and Science of the Russian Federation (Grant 3.6341.2017/VU) . - ISSN 1569-4410
Кл.слова (ненормированные):
Dipole-dipole interaction -- Laser field -- Brownian dynamics -- Self-assembly of nanostructures
Аннотация: The process of aggregation of two colloidal quantum dots in the field of quasiresonant laser radiation is investigated via computer simulation. The cases of either completely deterministic movement of particles or the movement with the account for random forces are considered. The conditions of pair formation are determined in dependence on initial interparticle distance, on laser wavelength, and on their initial orientation with respect to polarization plane of laser radiation. It is shown that despite velocity of thermal motion dominates over the velocity of directional diffusion of quantum dots, the account for random forces weakly influences on the probability of pair formation, the latter being close to results obtained in the deterministic case. The reason for this weak influence of Brownian movement is the resonant increase of electrodynamics attraction force during certain time interval within the laser pulse.

Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Держатели документа:
Institute of Engineering Physics and Radio Electronics, Siberian Federal University, 79 Svobodny prospect, Krasnoyarsk, 660041, Russian Federation
Polytechnic Institute, Siberian Federal University, 79 Svobodny prospect, Krasnoyarsk, 660041, Russian Federation
Laboratory of Coherent Optics, Kirensky Institute of Physics Federal Research Center KSC SB RAS, Akademgorodok 50 bld.38, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Tsipotan, A. S.; Tkachenko, V. A.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Slabko, V. V.
}
Найти похожие

10.

Komogortsev, S. V.
The magnetic dipole-dipole interaction effect on the magnetic hysteresis at zero temperature in nanoparticles randomly dispersed within a plane / S. V. Komogortsev, V. A. Fel'k, O. A. Li // J. Magn. Magn. Mater. - 2019. - Vol. 473. - P. 410-415, DOI 10.1016/j.jmmm.2018.10.091. - Cited References: 58. - This work was supported by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research project № 18-42-240006. . - ISSN 0304-8853
Кл.слова (ненормированные):
Micromagnetic simulation -- Magnetic hysteresis -- Magnetic nanoparticles -- Dipole-dipole interaction
Аннотация: The dipole-dipole interaction effect on the magnetic hysteresis of nanoparticles randomly dispersed within a plane is studied by micromagnetic simulation. The dependence of the coercive field with the concentration of nanoparticles varies from nonlinear and monotonic to non-monotonic dependence with a maximum at a certain concentration. It happens when the ratio of the magnetic anisotropy constant to the maximal dipole energy changes from value much larger than 1 to the value much less than unity.

Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Reshetnev Siberian State University of Science and Technology, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Fel'k, V. A.; Li, O. A.; Комогорцев, Сергей Викторович
}
Найти похожие